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Piston Return Spring

$54.99

KaleCoAuto has produced the highest quality piston return spring to date! High temperance chromed metal resists temperatures up to 300'f. KaleCoAuto piston return springs FORCE the pistons back into the motor, no longer relying on gravity! This effectively increases your revs, horsepower, and peak torque! You must buy one return spring per piston. Rotary engines require install of pistons for full compatibility. One per piston. Please specify if you are using a boxer motor!